Hey there...A friend at work recently brought me a box of 2 3/4 shells that were in his Grandfathers garage. He found them after his Grandfather passed away. There are about 130 total. One box had a price label on it from 2005 and all the boxes look the same. The boxes are slightly worn and shells look perfect. My question is, if they have been stored out there that long in the heat, cold, humidity (I live in Louisiana)...do you think they are still safe to use? Was curious about the gun powder and moisture. They are all Winchester Super X and some Federals. Thanks for the help and suggestions.